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[topcat]

Cars been running badly lately velt like someone holding a rag over tailpipe .baffling has been falling out tailpipe so thought baffles blocking. so put two new mid boxs and backbox on slightly better but still not right so decided to cut pipes off ether side of my old mid boxs and have a look one see straight through but the other is blocked completely with some object that doesnt look like it should be their wont budge with hammer and chisel .Can this object come from cat because car not running right sorry to go on thanks

[iainb]

Is your EML lamp on ?
Have you done a paper clip test for stored code's ?
Was what came out string and or tube mesh ?

[topcat]

No eml light did paperclip test no codes went to garage no codes yes baffling internals rusty mesh so changed mid and back boxs

[iainb]

Rusty mesh and string comes from jiggerd back box.
Mid boxes is straight through I think !
Did you run the car with the exhaust off ?

[topcat]

Rusty mesh and string comes from jiggerd back box.
Mid boxes is straight through I think !
Did you run the car with the exhaust off ?

yes just to here the sound without boxs

[topcat]

Rusty mesh and string comes from jiggerd back box.
Mid boxes is straight through I think !
Did you run the car with the exhaust off ?

yes just to here the sound without boxs

i allso thought they were straight through but ones not should/nt they be the same

[iainb]

Yes mid sections are the same.
It sound's nice with exhaust off !!!!!!!!!!
If you have a solid mass in one of the mid  boxes the only thing I can think of is one of the cat bricks is breaking up and the rest has turned.
But before you spend any cash I would suggest if you have the radio code to disconnect the battery and lock the POS & NEG leads together then remove a spark plug to check the condition.
Locking the battery leads together resets the ECU's & module's back to default but wont affect any software updates.
Have a go  

[topcat]

Yes mid sections are the same.
It sound's nice with exhaust off !!!!!!!!!!
If you have a solid mass in one of the mid  boxes the only thing I can think of is one of the cat bricks is breaking up and the rest has turned.
But before you spend any cash I would suggest if you have the radio code to disconnect the battery and lock the POS & NEG leads together then remove a spark plug to check the condition.
Locking the battery leads together resets the ECU's & module's back to default but wont affect any software updates.
Have a go  

why would i need to check a plug have changed plugs and all nice tan brown what will resetting ecu do the box has a maybe short pipe and the end is crimped in the shape of a cross blocking wont shift with chisel the two boxs are different make it just looks like it should nt be there thanks

[iainb]

Sorry spark plugs tell the story of what's going on inside the engine but from your discription all seems ok
The reason for the reset is any learnt running patterns can carry on after the fault has been corrected.
Last thing I can think of now is the Italian tune up.......Give it a total thrashing down the local bypass and see it clears the problem  8-)

[topcat]

Sorry spark plugs tell the story of what's going on inside the engine but from your discription all seems ok
The reason for the reset is any learnt running patterns can carry on after the fault has been corrected.
Last thing I can think of now is the Italian tune up.......Give it a total thrashing down the local bypass and see it clears the problem  8-)

see what you mean now with reset will try that i can allso do the italian tune up oh the reset do i fix leads together for how long and theirs not much point putting ignition on is their

[iainb]

Atleast 10 mins but no maxium
Your battery will be disconnected hence why I said about radio codes.
The main reason for all my suggestions is they wont cost a penny and will rule in & out many possibilities.
Without a code there are many things that can cause a running problem but you will never know,so its a process of working through all of the problem areas 1 by 1
Iain

[topcat]

Atleast 10 mins but no maxium
Your battery will be disconnected hence why I said about radio codes.
The main reason for all my suggestions is they wont cost a penny and will rule in & out many possibilities.
Without a code there are many things that can cause a running problem but you will never know,so its a process of working through all of the problem areas 1 by 1 do have radio and cd changer codes and thanks for all your help will try what you sugest thanks Iain
Iain

[topcat]

Atleast 10 mins but no maxium
Your battery will be disconnected hence why I said about radio codes.
The main reason for all my suggestions is they wont cost a penny and will rule in & out many possibilities.
Without a code there are many things that can cause a running problem but you will never know,so its a process of working through all of the problem areas 1 by 1 do have radio and cd changer codes and thanks for all your help will try what you sugest thanks Iain
Iain

put that in wrong place sorry